BSC6910 Product Description

SRAN8.0&GBSS15.0&RAN15.0 BSC6910

Product Description

Issue

Draft A

Date

2012-05-30

HUAWEI TECHNOLOGIES CO., LTD.

SRAN8.0&GBSS15.0&RAN15.0 Description

BSC6910

Product Contents

Copyright © Huawei Technologies Co., Ltd. 2012. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd. Trademarks and Permissions and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders.

Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS" without warranties, guarantees or representations of any kind, either express or implied. The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute a warranty of any kind, express or implied.

Huawei Technologies Co., Ltd. Address:

Huawei Industrial Base Bantian, Longgang Shenzhen 518129 People's Republic of China

Website:

http://www.huawei.com

Email:

[email protected]


BSC6910

Product Contents

Copyright © Huawei Technologies Co., Ltd. 2012. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd. Trademarks and Permissions and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders.

Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS" without warranties, guarantees or representations of any kind, either express or implied. The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute a warranty of any kind, express or implied.

Huawei Technologies Co., Ltd. Address:

Huawei Industrial Base Bantian, Longgang Shenzhen 518129 People's Republic of China

Website:

http://www.huawei.com

Email:

[email protected]


BSC6910

Product Contents

Contents 1 Introductio Introduction n ............................... ............................................... ................................ .............................. .............................. ................................ .............................. .............. 1-1 1.1 Positioning .................................................................................................................................................... 1-1 1.2 Benefits ......................................................................................................................................................... 1-3

2 Architecture ........................... ........................................... ................................ ................................ ............................... ............................... ................................ ................... ... 2-1 2.1 Overview ....................................................................................................................................................... 2-1 2.2 Hardware Architecture .................................................................................................................................. 2-1 2.2.1 Cabinets ............................................................................................................................................... 2-1 2.2.2 Subracks ............ ............. .............. ............ .............. ............. ............ .............. ............. .............. ............ 2-2 2.2.3 Boards .................................................................................................................................................. 2-3 2.3 Software Architecture .................................................................................................................................... 2-6 2.4 Reliability ............ .............. ............. ............ .............. ............. .............. ............ ............. .............. .............. ..... 2-7 2.4.1 System Reliability ................................................................................................................................ 2-8 2.4.2 Hardware Reliability ............................................................................................................................ 2-8 2.4.3 Software Reliability ............................................................................................................................. 2-9

3 Configurations ................................ ................................................ ............................... ............................... ................................ .............................. .......................... ............ 3-1 3.1 Overview ....................................................................................................................................................... 3-1 3.2 Capacity Configuration of the BSC6910 GSM ............................................................................................. 3-2 3.3 Capacity Configuration of the BSC6910 UMTS............. ............. ............ .............. ............. .............. ............ 3-3 3.3.1 Capacity of the BSC6910 UMTS in t he High-PS Traffic Model .............. ............. ............ .............. .... 3-3 3.3.2 Capacity of the BSC6910 UMTS in t he Traffic Model for Smart Phones ............. ............ .............. .... 3-4 3.4 Capacity Configuration of the BSC6910 GU ................................................................................................ 3-5

4 Operation and Maintenance ................................................................................................ 4-1 4.1 Overview ....................................................................................................................................................... 4-1 4.2 Benefits ......................................................................................................................................................... 4-2

5 Technical Specifications .............................. .............................................. .............................. .............................. ................................ .............................. .............. 5-1 5.1 Technical Specifications ................................................................................................................................ 5-1 5.1.1 Capacity Specifications ........................................................................................................................ 5-1 5.1.2 Structural Specifications ...................................................................................................................... 5-2 5.1.3 Clock Specifications ............................................................................................................................ 5-2 5.1.4 Electrical Specifications ....................................................................................................................... 5-3 5.1.5 Space Specifications ............................................................................................................................ 5-3


BSC6910

Product Contents

5.1.6 Environmental Specifications .............................................................................................................. 5-4 5.1.7 Transmission Ports ............................................................................................................................... 5-4 5.1.8 Reliability Specifications ..................................................................................................................... 5-4 5.2 Compliance Standards ................................................................................................................................... 5-5 5.2.1 Power Supply Standard ........................................................................................................................ 5-5 5.2.2 Grounding Standard ............................................................................................................................. 5-5 5.2.3 Environment Standards ........................................................................................................................ 5-5 5.2.4 Safety Standards ................................................................................................................................... 5-5 5.2.5 EMC Standards .................................................................................................................................... 5-6 5.2.6 Environment Standards ........................................................................................................................ 5-6

6 Acronyms and Abbreviation ............................................................................................... 6-1

SRAN8.0&GBSS15.0&RAN15.0 SRAN8.0&GBSS15.0&RAN15.0 Description

BSC 6910

Product 1 Introduction

1

Intr duction

1.1 Positioning This document appli s to BSC6910 V100R015. Based on the BSC6900, the BSC6910 is a new generation product employing a cutting-edge system architecture. he BSC6910 can accommodate the growing traffic o the mobile broadband network, provide diversified services, and support the evolution to cloud computing. Figure 1-1 shows th BSC6910. Figure 1-1 BSC6910

Like the BSC6900, t e BSC6910 can be flexibly configured as a BSC6910 GSM, BSC6910 UMTS, or BSC6910 GU. The BSC6910 GSM and BSC6910 UMTS are re erred to as the BSC6910 in independent mode, and the BSC6910 GU is referred to as the SC6910 in integrated mode. Th BSC6910 GSM and BSC6910 UMTS support the co- cabinet solution, meaning their board can be installed in one cabinet. The BSC6910 suppor s GU features such as co-OAM (O eration and management), Co-Radio Resource Management (Co-RRM), and Co-Transmissio Resources Management (Co-TRM). The BSC6910 c nnects to GSM and UMTS core net orks (CNs) and manages base stations in GSM and U TS networks. Figure 1-2 shows th position of the BSC6910 in the network.


BSC6910


Figure 1-2 Position of the BSC6910 in the network

The interfaces between the BSC6910 and each network element (NE) in the UMTS network are as follows: 

Iub: the interface between the BSC6910 and the NodeB



Iur: the interface between the BSC6910 and the RNC



Iur-g: the interface between the BSC6910 and the B SC



Iu-CS: the interface between the BSC6910 and the mobile switching center (MSC) or media gateway (MGW)



Iu-PC: the interface between the BSC6910 and the serving mobile location center (SMLC)



Iu-PS: the interface between the BSC6910 and t he serving GPRS support node (SGSN)



Iu-BC: the interface between the BSC6910 and the cell broadcast center (CBC)

These interfaces are standard interfaces, through which the BSC6910 can be interconnected with the equipment from different vendors. The interfaces between the BSC6910 and each NE in the GSM network are as follows: 

Abis: the interface between the B SC6910 and the BTS



A: the interface between the BSC6910 and the MSC or MGW



Gb: the interface between the B SC6910 and the SGSN



Lb: the interface between the B SC6910 and the SMLC

The A and Gb interfaces are standard interfaces, through which the BSC6910 can be interconnected with the equipment from different vendors.


BSC6910


1.2 Benefits Capable o !volvin" to a #era $et%or& and 'rovidin" $on-bloc&in" (ireless Communication The BSC6910 conforms to the trend of higher capacity and fewer sites, saving equipment room space. In addition, the BSC6910 meets the requirements of rapid service growth and improves return on equipment investment. The BSC6910 uses new Platform of Advanced Radio Controller REV:b (PARCb) subracks and supports a processing capability of 10 Gbit/s per slot. The B SC6910 in later versions supports the evolution to a processing capability of 40 Gbit/s to 100 Gbit/s per slot and to a tera network. The BSC6910 uses a new general processing board. When processing control plane services, the new board outperforms the counterparts in the BSC6900 by 5 times. When processing user plane services, the new board outperforms the counterparts in t he BSC6900 by 2.5 times and supports a maximum processing capability of 2 Gbit/s.

$ormali)ed *oard+ Minimi)in" t,e $et%or& Construction Costs The BSC6910 introduces a new Evolved General Processing Unit REV:a (EGPUa), which incorporates the functions of multiple boards in the BSC6900. The boards include the XPUa, XPUb, SPUa, SPUb, DPUb, DPUc, DPUd, DPUe, DPUf, and DPUg. When loaded with different software, the EGPUa can be flexibly configured to work in different modes and process the BSC or RNC control plane and user plane services.

leible $et%or& Capacity !pansion #,rou", /esource 'ool 0esi"n All the BSC6910 resources are designed in the resource pool mode. The BSC6910 resources consist of control plane resources, user plane resources, and transmission resources. The control plane and user plane resources can be shared to better adapt to the traffic model changes. The BSC6910 supports the plug-and-play and automatic deployment functions. When hardware resources become insufficient, operators can simply add a board by running the related commands, insert the physical board into the cabinet, and power on the board. Then, the BSC6910 will automatically deploy the required software on the board based on the system pre-configuration and traffic load. The BSC6910 will also assign control plane or user plane services to the board to implement load sharing. Operators do not need to manually perform load sharing.


BSC6910

Product 2 Architecture

2

Architecture

2.1 Overview The BSC6910 has a modular design and enhances resource utilization and system reliability by providing a 40 gigabit bandwidth for subrack interconnection and applying distributed resource pools to manage service processing units. The backplane is universal and every slot is compatible with different types of boards so that various functions can be performed. This improves the universality and future evolution capability of the hardware platform. The BSC6910 uses new PARCb subracks. The PARCb subrack can be configured as the Main Processing Subrack (MPS) or Extended Processing Subrack (EPS).

2.2 Hardware Architecture 2.2.1 Cabinets The BSC6910 uses the Huawei N68E-22 cabinet and earthquake-proof N68E-21-N cabinet. The design complies with the IEC60297 and IEEE standards. The cabinet configured with the MPS subrack is called Main Processing Rack (MPR) and t he cabinet not configured with the MPS subrack is called Extended Processing Rack (EPR). Figure 2-1 shows the front view and rear view of the BSC6910 cabinet.


BSC6910


Figure 2-1 Front view (left) and rear view (right) of the BSC6910 cabinet

1 Subracks

2 Air defense subrack

2.2.2 Subracks In compliance with the IEC60297 standard, the BSC6910 subrack has a standard width of 19 inches. The height of each subrack is 12 U. Boards are installed on the front and rear sides of the backplane, which is positioned in the center of the subrack. One subrack provides 28 slots. The slots on the front of the subrack are numbered from 0 to 13, and those on the rear are numbered from 14 to 27. Error! Reference source not found. shows the front view and rear view of the subrack.


BSC6910


Figure 2-2 Front view (left) and rear view (right) of the subrack

The BSC6910 subracks are classified into the MPS and EPS, as described in Table 2-1. Table 2-1 Classification of the BSC6910 subracks

ubrac&

uantity

unction

MPS

1

The MPS performs centralized switching and provides service paths for other subracks. It also provides the service processing interface, O&M interface, and system clock interface.

EPS

0–5

The EPS performs the functions of user pl ane processing and signaling control.

2.2.3 Boards The BSC6910 boards can be classified into the O&M board, switching processing board, clock processing board, general processing board, service identification board, and interface processing board, as described in Table 2-2. Table 2-2 Classification of the BSC6910 boards Board Type

Board Name

Full Name

Function

General processing board

EGPUa

Evolved General Processing Unit REV:a



Manages user plane and control plane resource pools.



Processes user plane and control plane services for the BSC and RNC.


BSC6910


Board Type

Board Name

Full Name

Function

O&M board

EOMUa

Evolved Operation and Maintenance Unit REV:a



Performs configuration management, performance management, fault management, security management, and loading management for the BSC6910.



Works as the O&M bridge of the LMT/M2000 to provide the BSC6910 O&M interface for the LMT/M2000 and to enable communication between the BSC6910 and the LMT/M2000.



Works as the interface to provide the Web-based online help.



Collects data about the call history record (CHR) and pre-processes the collected data.



Filters and summarizes raw data of the BSC6910 as required by the Nastar and uploads the preprocessed data to the Nastar through the M2000 for analysis.



Provides MAC/GE switching and enables the convergence of ATM and IP networks. MAC is short for Media Access Control and ATM is short for asynchronous transfer mode.



Provides data switching channels.



Provides system-level or subrack-level configuration and maintenance.



Distributes clock signals for the BSC6910.

ESAUa

Switching processing board

SCUb

Evolved Service Aware Unit REV:a

GE Switching network and Control Unit REV:b


BSC6910


Board Type

Board Name

Full Name

Function

Clock processing board

GCUa

General Clock Unit REV:a

GCGa

General Clock unit with GPS REV:a

Obtains the system clock source, performs the functions of phase-lock and holdover, and provides clock signals. Unlike the GCUa board, the GCGa board can receive and process GPS signals.

Service identification board

ENIUa

Evolved Network Intelligence Unit REV:a

Provides the service identification function and works with the service processing boards to schedule different types of services.

Interface processing board

EXOUa

Evolved 2-port 10GE Optical interface Unit REV:a



Provides two channels over 10 Gbit/s optical ports.



Supports IP over GE.



Provides 12 channels over FE or 4 channels over GE electrical ports.



Supports IP over FE/GE.

4-port packet over GE Optical interface Unit REV:c



Provides four channels over GE optical ports.



Supports IP over GE.

4-port ATM over channelized Optical STM1/OC-3 interface Unit REV:c



Provides four channels of ATM over channelized optical STM-1/OC-3.



Supports ATM over E1/T1 over SDH/SONET.



Provides 252 E1s or 336 T1s.



Extracts clock signals and sends the signals to the GCUa or GCGa board.

FG2c

GOUc

AOUc

12-port FE or 4-port electronic GE interface unit REV:c


Board Type

BSC6910


Board Name

Full Name

Function

UOIc

8-port ATM over Unchannelized Optical STM-1/OC-3 Interface unit REV:c



Provides eight channels over unchannelized STM-1/OC-3c.



Supports ATM over SDH/SONET.






Provides four channels of TDM/IP over channelized optical STM-1/OC-3.



Supports IP over E1/T1 over SDH/SONET.



Supports a load equivalent to 252 E1s or 336 T1s.




POUc

4-port IP over channelized Optical STM-1/OC-3 interface Unit REV:c

2.3 ot%are Arc,itecture The BSC6910 inherits the layered software architecture of the B SC6900. By deploying different application software on a unified base platform, the BSC6910 provides different services. Each layer and each plane are d eployed on its lower layer and provide services for its upper layer and other planes. At the same time, the technical implementation of each l ayer, such as algorithms and physical deployment, is isolated from other layers so that each layer and each plane are dedicated to its own functions and evolve independently. Error! Reference source not found. shows the BSC6910 software architecture.


BSC 6910


Figure 2-3 BSC6910 software architecture

Error! Reference s urce not found. describes the functions of each plane in the BSC6910 software architectur . Table 2-3 Functions f each plane in the BSC6910 software architecture

'lane

unction

Base platform

Provides the operating system (OS) and basic fu ctions, such as cross-process communication, message manage ent, redundant backup, and software management.

OM mechanism pl ne

Provides O&M functions for the system, and provides communication with the network management s stem (NMS) through the southbound interface.

Application OM plane

Provides configuration management, maintenance management, performance management, alarm management, and log management for the system.

Resource management plane

Manages user plane, control plane, and transport plane resources.

Function plane

Processes GSM and UMTS call services accordi g to 3GPP specifications.

2.4 /eliability The resource pool d sign and redundancy mechanism are widely used in the system reliability design of the BSC6910. The techniques of detecting and isolating the faults in the boards and


BSC6910


in the system are optimized and the software fault tolerance capability is improved to enhance system reliability.

2.4.1 ystem /eliability The BSC6910 system reliability is ensured by the following features: 

High-reliability architecture design Port trunking technology is employed on t he active and standby switching boards. The ports in a port trunking group work in load sharing mode. When a link between the SCUb boards in different subracks is faulty, the system transfers the services carried on the faulty link to other links and isolates the faulty link. In addition, the SCUb boards in different subracks are cross-connected, preventing a port failure on the SCUb board in one subrack from affecting the SCUb boards in another subrack. This improves the reliability of intra-controller communication. Dual clock planes are used in the clock transmission between the GCUa/GCGa board and the SCUb board. Therefore, a single failure does not affect the normal operation of the system clock.



Resource pool design The system implements load sharing on the control plane and on the user plane by employing a full resource pool design. This effectively prevents suspension of service in case of overload, improving resource utilization and system reliability.



Active/standby switchover All BSC6910 hardware supports active/standby switchover. Quick switchover between active and standby parts improves system reliability. In addition, quick fault detection and recovery minimizes the impact of faults on services.



Flow control The system performs flow control based on the central processing unit (CPU) and memory usage. Therefore, the BSC6910 can continue working by regulating the items pertaining to performance monitoring, resource auditing, and resource scheduling in the case of CPU overload and resource insufficiency. In this way, the system reliability is enhanced.

2.4.2 ard%are /eliability The BSC6910 hardware reliability is ensured by the following features: 

The system uses the multi-level cascaded and d istributed cluster control mode. Several CPUs form a cluster processing system. The communication channels between CPUs are based on the redundancy design or anti-suspension/breakdown design.



The system uses the redundancy design, as described in Error! Reference source not found., to support the hot swap of boards and backup of boards and ports. Therefore, the system has a strong fault tolerance capability.

Table 2-4 Board redundancy Board

Redundancy Mode

EGPUa

Board resource pool

EXOUa

Board redundancy + board resource pool + 10 Gbit/s GE port redundancy or load sharing


BSC6910


Board

Redundancy Mode

EOMUa

Board redundancy

ESAUa

Independently configured

FG2c

Board redundancy + board resource pool + GE/FE port redundancy or load sharing

GOUc

Board redundancy + board resource pool + GE port redundancy or load sharing

AOUc

Board redundancy + MSP 1:1 or MSP 1+1 optical port redundancy

UOIc


POUc


GCUa/GCGa

Board redundancy

SCUb

Board redundancy + port trunking on GE ports

ENIUa

Board resource pool



An isolation mechanism is used. When entity A fails to accomplish a task, entity B that has functions identical to entity A takes over the task. Meanwhile, entity A is isolated until it is restored.



When a board with a single function is faulty, you can restart the board.



All boards support dual-BIOS. BIOS is short for basic input/output system. Faults in one BIOS do not affect the startup or operation of the boards.



The system uses the nonvolatile memory to store important data.



With advanced integrated circuits, the system features high integration, sophisticated technology, and high reliability.



All the parts of the system have high quality and pass the aging test. The hardware assembly process is strictly controlled. These methods ensure high stability and reliability for long-term operation.

2.4.3 ot%are /eliability The BSC6910 software reliability is ensured by the following features: 

Scheduled check on crucial resources The software check mechanism checks various software resources in the system. If resources are out of service because of software faults, this mechanism can release abnormal resources and generate related logs and alarms.



Task monitoring When the software is running, internal software faults and some hardware faults can be monitored through the monitoring process. The monitoring process monitors the task running status and reports errors to the O&M system.



Data check


BSC6910


The software integrity check and digital signature technique are used to prevent the software from being tampered with during the t ransmission and storage. The software performs scheduled or event-driven data consistency checks, restores data selectively or preferably, and generates logs and alarms. 

Data backup Both the data in the OMU database and the data of other boards can be backed up to ensure data reliability and consistency.



Operation log storage The system automatically records historical operations into logs. The operation logs help in locating and rectifying the faults caused by misoperations.


BSC6910

Product 3 Configurations

3

Configurations

3.1 Overview The BSC6910 GSM and BSC6910 UMTS are referred to as the BSC6910 in independent mode, and the BSC6910 GU is referred to as the BSC6910 in integrated mode. The BSC6910 GU incorporates the functions of the B SC6910 GSM and BSC6910 UMTS through unified software management and shared EOMU and GCU/GCG. In the BSC6910 GU, GSM service boards and UMTS service boards are configured in separate subracks. In the BSC6910, the MPS or EPS can be configured with either GSM or UMTS service processing boards. The BSC6910 GU supports a maximum of two cabinets that have six subracks installed. Of the subracks, a maximum of three are GSM subracks. The BSC6910 UMTS also supports a maximum of two cabinets that have six subracks installed. The BSC6910 GSM supports a maximum of one cabinet t hat has three subracks installed. When the BSC6910 V100R015 is configured as the BSC6910 GSM or BSC6910 GU, it does not support A over TDM transport or the TC subrack. The BSC6910 cannot be upgraded from the BSC6900. Figure 3-1 shows an example of the configurations of the BSC6910 UMTS, BSC6910 GSM, and BSC6910 GU. Figure 3-1 Example of the configurations of the BSC6910 UMTS, BSC6910 GSM, and BSC6910 GU


BSC6910


3.2 Capacity Coni"uration o t,e *C61 M Table 3-1 provides the capacity of a BSC6910 GSM in Abis over TDM and A over IP modes. Table 3-1 Capacity of a BSC6910 GSM in Abis over TDM and A over IP modes

#ypical

1 MPS

1 MPS+1 EPS

1 MPS+2 EPSs

Maximum number of cabinets

1

1

1

Maximum number of TRXs

4000

7000

10,000

Maximum number of equivalent BHCA (k)

8667

15,167

21,667

Maximum traffic volume (Erlang)

25,000

43,750

62,500

Maximum number of active PDCHs (MCS-9)

16,000

28,000

40,000

Coni"uration peciications

Table 3-2 provides the capacity of a BSC6910 GSM in all-IP transmission mode. Table 3-2 Capacity of a BSC6910 GSM in all-IP transmission mode

#ypical Coni"uration

1 MPS

1 MPS+1 EPS

1 MPS+2 EPSs

Maximum number of cabinets

1

1

1

Maximum number of TRXs

7200

15,600

24,000

peciications


BSC6910


#ypical Coni"uration

1 MPS

1 MPS+1 EPS

1 MPS+2 EPSs


15,600

33,800

52,000

Maximum traffic volume (Erlang)

45,000

97,500

150,000

Maximum number of active PDCHs (MCS9)

28,800

62,400

96,000

peciications

3.3 Capacity Coni"uration o t,e *C61 7M# The BSC6910 UMTS supports the flexible configuration of control plane and user plane data in different scenarios. In each scenario, the capacity configured for the BSC6910 UMTS depends on actual traffic models. There are two traffic models for the BSC6910 UMTS: 

High-PS traffic model This model is applicable in scenarios where subscribers use much more data services than voice services. In this model, the average PS throughput per user is high.



Traffic model for mart phones In this model, control plane signaling is frequently exchanged and user plane data is transmitted mainly through small packets.

Sections 3.3.1 "Capacity of the BSC6910 UMTS in the High-PS Traffic Model" and 3.3.2 "Capacity of the BSC6910 UMTS in the Traffic Model for Smart Phones" describe the capacity of a BSC6910 UMTS i n typical configurations in the high-PS traffic model and traffic model for smart phones, respectively.

3.3.1 Capacity o t,e *C61 7M# in t,e i",-' #raic Model Table 3-3 describes the high-PS traffic model for the BSC6910 UMTS. Table 3-3 High-PS traffic model for the BSC6910 UMTS (per user in busy hours)

Item

peciication 0escription

CS voice traffic volume

3 mE

AMR speech service, 0.144 BHCA

CS data traffic volume

0.2 mE

UL 64 kbit/s/DL 64 kbit/s, 0.01 BHCA

PS throughput

43,500 bit/s

UL 64 kbit/s/DL 384 kbit/s, 3 BHCA

Proportion of soft handovers

30%

Proportion of calls using two channels simultaneously to all calls

Number of handovers per CS call

8

Average number of handovers per CS call


BSC6910


Item


Number of handovers per PS call

5

Average number of handovers per PS call

Number of NAS procedures

3.6

Number of NAS procedures between the CN and the UE, including the location area update, IMSI attach/detach, routing area update, GPRS attach/detach, and SMS

Table 3-4 provides the capacity of the BSC6910 UMTS in typical configurations (one cabinet that has three subracks installed). In this table, the BSC6910 UMTS uses the high-PS traffic model. Table 3-4 Capacity of the BSC6910 UMTS in typical configurations (one cabinet that has three subracks installed)

$umber o 7sers upported

C 8oice ervice Capacity 9!rlan":

' ervice Capacity 9Iub 7;<0;: 9Mbit=s:

*CA 9&:

*CA 9&: 9Include M:

1,380,000

5722

59,800

4338

5715

The CS voice s ervice capacity, PS service capacity, and BHCA can reach the maximum at the s ame time.

3.3.2 Capacity o t,e *C61 7M# in t,e #raic Model or mart ',ones Table 3-5 describes the traffic model for smart phones for the BSC6910 UMTS. Table 3-5 Traffic model for smart phones for the BSC6910 UMTS (per user in busy hours)

Item


CS voice traffic volume

2.55 mE

AMR speech service, 0.5507 BHCA

CS data traffic volume

0 mE

UL 64 kbit/s/DL 64 kbit/s CS data service, 0 BHCA

PS throughput

1197.6 bit/s

UL 0.8 kbit/s/DL 5.12 kbit/s, 7.8644 BHCA

Proportion of soft handovers

34%

Proportion of calls using two channels simultaneously to all calls

Number of handovers per CS call

10.621

Average number of handovers per CS call


BSC6910


Item


Number of handovers per PS call

0.7426

Average number of handovers per PS call

Number of NAS procedures

2.0344

Number of NAS procedures between the CN and the UE, including the location area update, IMSI attach/detach, routing area update, GPRS attach/detach, and SMS

Table 3-6 provides the capacity of the BSC6910 UMTS in typical configurations (one cabinet that has three subracks installed). In this table, the BSC6910 UMTS uses the traffic model for smart phones. Table 3-6 Capacity of the BSC6910 UMTS in typical configurations (one cabinet that has three subracks installed)

$umber o 7sers upported

C 8oice ervice Capacity 9!rlan":

' ervice Capacity 9Iub 7;<0;: 9Mbit=s:

*CA 9&:

*CA 9&: 9Include M:

3,830,000

130,000

4582

32,000

35,000

The CS voice s ervice capacity, PS service capacity, and BHCA can reach the maximum at the s ame time.

3.4 Capacity Coni"uration o t,e *C61 7 Table 3-7 provides the capacity of a BSC6910 GU when GSM uses all-IP transmission. Table 3-7 Capacity of a BSC6910 GU when GSM uses all-IP transmission

1 M' Coni"uration 9M:<2 !'s 97M#: #ypical

peciications

1 M' 9M:<1 !' 9M:<1 !' 97M#:

1 M' 97M#:<2 !'s 9M:

1 M' 97M#:<1 !' 97M#:<1 !' 9M:

Maximum UMTS traffic volume (Erlang)

83,750

40,000

40,000

83,750

Maximum UMTS PS (UL+DL) data throughput (Mbit/s)

40,200

19,200

19,200

40,200

Maximum number of GSM TRXs

7200

15,600

16,800

8400

Maximum number of equivalent BHCA for GSM (k)

15,600

33,800

36,400

18,200


BSC6910

3 Configurations

#ypical

peciications

Product

1 M' Coni"uration 9M:<2 !'s 97M#:

1 M' 9M:<1 !' 9M:<1 !' 97M#:

1 M' 97M#:<2 !'s 9M:

1 M' 97M#:<1 !' 97M#:<1 !' 9M:

Maximum number of active PDCHs for GSM (MCS-9)

28,800

62,400

67,200

33,600

Maximum GSM traffic volume (Erlang)

45,000

97,500

105,000

52,500


BSC6910

Product 4 Operation and Maintenance

4

Operation and Maintenance

4.1 Overview The BSC6910 provides convenient local maintenance and remote maintenance and supports multiple flexible O&M modes. The BSC6910 provides hardware-independent O&M functions such as security management, fault management, alarm management, equipment management, and software management. Users can use man-machine language (MML) commands to perform O&M and configuration functions and use the graphical user interface (GUI) to perform O&M functions. This meets the operational requirements from different users. Users can use man-machine language (MML) commands to perform O&M and configuration functions and use the graphical user interface (GUI) to perform O&M functions. This meets the operational requirements from different users. Error! Reference source not found. shows the O&M network of the BSC6910.


BSC6910


Figure 4-1 O&M network of the BSC6910

The O&M system of t he BSC6910 uses the browser/server (B/S) separated mode. The EOMUa board of the BSC6910 works as the server, and the LMT is used for local maintenance. The iManager M2000 is the centralized O&M system, which is used for remote maintenance. The alarm box connects to the LMT and provides audible and visible indications for alarms.

4.2 Benefits (eb-based ;M# Improvin" 7ser !perience Besides the operations support system (OSS), the BSC6910 can also be operated using the web-based LMT. You can connect the LMT to the BSC6910 to perform O&M operations for the BSC6910 and to obtain the online help of the LMT. All the operation results are d isplayed on the LMT through the web browser. The web-based LMT does not require software installation and software upgrade, simplifying user operations and improving user experience.

0iversiied O>M Modes The BSC6910 provides local maintenance and remote maintenance and supports multiple O&M modes to meet the needs in various O&M scenarios. The LMT for local maintenance can access the B SC6910 in the following ways:


BSC6910

Product



Through the port on the panel of the EOMUa board



Through the virtual local area network (VLAN)



Through the Intranet and Internet

4 Operation and Maintenance

The iManager M2000 for remote maintenance can access the BSC6910 in the following ways: 

Through the VLAN



Through the Intranet and Internet

'o%erul ard%are Mana"ement unctions or uic&ly ;ocatin" and /ectiyin" ard%are aults The BSC6910 provides a prewarning mechanism for hardware faults, ensuring that sufficient time is available to rectify the faults before services are interrupted. The BSC6910 provides functions such as status query, data configuration, and status management of internal devices. When a hardware fault occurs, the BSC6910 alerts t he user by generating alarms and flashing indicators and provides suggestions to guide the user in troubleshooting. The alarm is cleared upon the rectification of the fault. The BSC6910 provides the functions of isolating a faulty component, such as activating or deactivating the faulty component. When a faulty component needs to be replaced, the hot swap function enables the quick power-on of the substitute, reducing the time in fault rectification. In case of emergencies, you can reset the board to quickly rectify the fault.

Advanced ot%are Mana"ement unctions or ecure and moot, 7p"rades The BSC6910 provides a remote upgrade tool, which enables the operator to upgrade the software at the O&M center without interrupting ongoing services. The remote upgrade tool provides the function of backing up crucial data in the system. When the upgrade fails, version rollback can be performed immediately and the system returns to normal in a short period. After the upgrade is complete, a version consistency check is performed to ensure the version correctness.

/ic, #racin" and 0etection Mec,anisms or /eliably Monitorin" t,e $et%or& tatus The BSC6910 provides the tracing and detection functions on multiple layers and multiple levels to accurately locate faults. The tracing and detection functions include user tracing, interface tracing, message tracing, fault detection at the physical layer, and fault detection at the data link layer. The tracing messages are saved as files, which can be viewed through the review and tracing functions of the LMT.


BSC6910


!asy !?uipment Installation and Commissionin"+ and !icient $et%or& 7p"rade c,eme or uic& $et%or& 0eployment Before delivery, boards and operating systems are installed in and common data is configured for the Huawei BSC6910. In addition, the BSC6910 is fully assembled and passes rigid tests. You only need to install the cabinet and cables onsite. After the hardware installation is complete, you can load software and data files to commission the software and hardware. The BSC6910 can be configured as one of the three variants through board adjustments and software upgrades, facilitating the smooth evolution from GSM to GSM+UMTS and between GSM+UMTS and UMTS. In addition, the B SC6910 provides the 2G/3G convergence solution and protects the operator's investment.

/obust ecurity Operation Mec,anism 'reventin" Misoperations The BSC6910 provides a man-machine interface and prompts users to confirm an important operation. This ensures that an operation is performed only when it is required and prevents service interruptions caused by misoperations.


BSC6910

Product 5 Technical Specifications

5

Technical Specifications

5.1 #ec,nical peciications 5.1.1 Capacity peciications *C61 in Independent or Inte"rated Mode

Item

Specification

BSC6910 UMTS

BHCA (k)

64,000

BHCA (k) (Include SMS)

70,000

Traffic volume (Erlang)

250K

PS (UL+DL) data throughput (Mbit/s)

120,000

Number of NodeBs

10,000

Number of cells

20,000

BHCA (k)

53,300

BHCA (k) (Include SMS)

58,300


208,000

PS (UL+DL) data throughput (Mbit/s)

100,000

Number of NodeBs

10,000

Number of cells

20,000


52,000


150,000

Number of TRXs

24,000

Number of configured PDCHs

180,000

Number of active PDCHs (MCS-9)

96,000

BSC6910 GU (UMTS capacity)

BSC6910 GSM /BSC6910 GU (GSM capacity)


BSC6910

*C61 in Independent or Inte"rated Mode


Item

Specification

Gb interface throughput (Mbit/s)

8000

1. This table provides the maximum capacity specifications of the BSC6910 UMTS and BSC6910 GU in a configuration of two cabinets that have six subracks installed. 2. The items BHCA (k), BHCA (k) (Include SMS), traffic volume ( Erlang), PS (UL+DL) data throughput (Mbit/s), number of NodeBs, and number of cells for the BSC6910 UMTS and the BSC6910 GU cannot reach the maximum value at t he same time. 3. The actual capacity depends on the traffic model of the live network. If the traffic model of the live network differs from the Huawei traffic model, the BSC6910 may provide a capacity different from what described in this table.

5.1.2 tructural peciications Item

peciication

Cabinet standard

The structural design conforms to the IEC60297 and IEEE standards.

Dimensions (H x W x D)

N68E-22 cabinet: 2200 mm x 600 mm x 800 mm

Height of the available space

N68E-22 cabinet: 46 U

Cabinet weight Load-bearing capacity of the floor in the equipment room

N68E-21-N cabinet: 2130 mm x 600 mm x 800 mm

N68E-21-N cabinet: 44 U N68E-22 cabinet: ≤400 kg N68E-21-N cabinet: ≤ 430 kg ≥ 450

2

kg/m

5.1.3 Cloc& peciications Item

peciication

Clock precision

It meets the requirements for the stratum-3 clock.

Clock accuracy

±4.6 x 10

Pull-in range

±4.6 x 10

Maximum frequency offset

2 x 10 /day

Initial maximum frequency offset

1 x 10

-6 -6

-8

-8


BSC6910


5.1.4 !lectrical peciications Item

peciication

Power input

–48 V DC. Each subrack is configured with four 100 A power inputs (two active and two standby).

Power range

–40 V to –57 V

Power consumption of a single subrack

≤ 4000W

Power consumption of a single cabinet

The cabinet power consumption equals the sum of power consumption of all subracks in the cabinet. The power consumption of a typically configured cabinet should be equal to or less than 7100 W to reduce the impact of cabinet heat d issipation on the equipment room.

5.1.5 pace peciications Figure 5-1 Space requirements for the equipment room



If cables are routed overhead, the distance between the cabinet top and the ceiling of the equipment room must be greater than or equal to 1000 mm.



If cables are routed under the floor, the height of the ESD floor must be greater than or equal to 200 mm.



The spacing shown in Figure 5-1 is the minimum possible value. The actual spacing is wider than that shown in Figure 5-1.


BSC6910


The BSC6910 does not support installation against a wall, because the PARCb subrack needs to be installed from the front and rear sides and cables for the boards installed in the rear side are routed from the rear of the BSC6910 cabinet.



5.1.6 !nvironmental peciications Item

peciication tora"e !nvironment

#ransportation !nvironment

Operatin" !nvironment

Temperature range

–40°C to +70°C

–40°C to +70°C

Long-term: 0°C to 45°C

Humidity range

10% RH to 100% RH

Short-term: –5°C to +55°C 5% RH to 100% RH

Long-term: 5% RH to 85% RH Short-term: 5% RH to 95% RH

The short-term operation refers to the operation with the duration not more than 96 hours at a time and with the accumulative duration not more than 15 days a year.

5.1.@ #ransmission 'orts #ransmission #ype

Connector

FE

RJ45

GE

RJ45 LC/PC

10 GE

LC/PC

Channelized STM-1/OC-3

LC/PC

Unchannelized STM-1/OC-3

LC/PC

5.1. /eliability peciications Item

peciication

System availability

> 99.999%

Mean time between failures (MTBF)

≥ 525,000

Mean time to repair (MTTR)

≤ 1

hour

hours


BSC6910


5.2 Compliance tandards 5.2.1 'o%er upply tandard Item

Standard

Power supply

ETS300 132-2

5.2.2 roundin" tandard Item

tandard

Grounding

ETS300 253

5.2.3 !nvironment tandards Item

tandard

Noise

ETS300 753 GR-63-CORE

5.2.4 aety tandards Item

tandard

Earthquake-proofing

ETS300 019-2-4-AMD GR-63-CORE YDN5083

Safety

IEC60950, EN60950, UL60950 IEC60825-1 IEC60825-2 IEC60825-6 GB4943 GR-1089-CORE

Surge protection

IEC 61024-1 (1993) IEC 61312-1 (1995) IEC 61000-4-5 (1995)


BSC6910

Item


tandard ITU-T K.11 (1993) ITU-T K.27 (1996) ITU-T K.41 (1998) EN 300 386 (2000) GR-1089-CORE (1999) YDJ 26-89 GB 50057-94 YD5098-2001

5.2.5 !MC tandards Item

tandard

Electromagnetic compatibility (EMC)

ETSI EN 300 386 V1.3.2 (2003-05) CISPR 22 (1997) IEC61000-4-2 IEC61000-4-3 IEC61000-4-4 IEC61000-4-5 IEC61000-4-6 IEC61000-4-29 GB9254-1998 FCC Part 15 NEBS Bellcore GR-1089-CORE issue 2

5.2.6 !nvironment tandards Item

tandard

Class

Storage environment

ETS300 019-1-1

CLASS 1.2

Transportation environment

ETS300 019-1-2

CLASS 2.3

Operating environment

ETS300 019-1-3

CLASS 3.1


BSC6910

Product 6 Acronyms and Abbreviation

6

Acronyms and Abbreviation

3GPP

Third Generation Partnership Project

AMR

Adaptive Multirate

ATM

Asynchronous Transfer Mode

BHCA

Busy Hour Call Attempt

BIOS

Basic Input/Output System

BM/TC

Basic Module/Transcoder

BSC

Base Station Controller

BTS

Base Transceiver Station

CBC

Cell Broadcast Center

CHR

Call History Record

CN

Core Network

Co-RRM

Co-Radio Resource Management

CPU

Central Processing Unit

CS

Circuit Service

DSP

Digital Signal Processor

EPR

Extended Processing Rack

EPS

Extended Processing Subrack

FE

Fast Ethernet


BSC6910

Product 6 Acronyms and Abbreviation

GE

Gigabit Ethernet

GSM

Global System for Mobile communications

GUI

Graphic User Interface

IP

Internet Protocol

LMT

Local Maintenance Terminal

LTE

Long Term Evolution

MAC

Media Access Control

MGW

Media Gateway

MME

Mobile Management Entity

MML

Man Machine Language

MPR

Main Processing Rack

MPS

Main Processing Subrack

MSC

Mobile Switching Center

MSP

Multiplex Section Protection

MTBF

Mean Time Between Failures

MTTR

Mean time to repair

NAS

Non-Access Stratum

OM

Operation & Maintenance

OS

Operating System

PDCH

Packet Data Channel

PPP

Point-to-Point Protocol

PS

Packet Switched

RNC

Radio Network Controller

RRM

Radio Resource Management

SDH

Synchronous Digital Hierarchy

BSC6910 Product Description

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